RANUNCULACEAE. — CLEMATIS 343 
Western Szech’uan: vicinity of Sungpan, rocky places, alt. 
2600-3600 m., August 1910 (No. 4548; climber 2-3 m., flowers bronzy- 
yellow); without precise localities, dry, hot valleys, alt. 2000-3100 m., 
August 1903, September 1904 (Veitch Exped. Nos. 3132, 31325, 
3131, 3131*, seed No. 1700). Western Kansu: Tow river, alt. 
3000 m., and Lao-chou district, alt. 3000 m., 1911, W. Purdom. 
Very abundant in the upper reaches of the Min Valley especially in the neigh- 
bourhood of Sungpan Ting. 
A picture of this plant will be found under No. 0320 of Wilson's collection of 
photographs. 
Clematis tangutica Korshinsky in Bull. Acad. Sci. St. Pétersbourg, 
sér. 5, IX. 399 (1898) quoad synonymum, exclusa descriptione. — 
André in Rev. Hort. 1902, 528, t. — Schneider, IU. Handb. Laubholzk. 
I. 294, fig. 185 w-z, 191 t (1904). 
Clematis orientalis, var. tangutica Maximowiez, Fl. Tangut. 3 (1889). 
Clematis eriopoda Koehne, Deutsch. Dendr. 155 (non Maximowicz) (1893). 
The type does not seem to occur in western China. 
The plant from the Pamirs which Korshinsky describes as C. tangutica (Maxim.) 
is apparently not Maximowicz’s plant, but belongs probably to the true C. orientalis 
Linnaeus. Korshinsky describes his plant as having “ sepala ovata, acuta, intus 
pubescentia . . . flores 3-4 cm. in diamatro," while Maximowicz’s plant has 
acuminate sepals, glabrous inside and flowers about 7 cm. in diameter. From the 
following variety the plant from the Pamirs is easily distinguished by its sepals 
being pubescent on the inside. 
Clematis tangutica, var. obtusiuscula Rehder & Wilson, n. var. 
A typo recedit ramulis junioribus, petiolis, pedunculis paullo villos- 
ioribus, foliolis minoribus plerumque ovato-lanceolatis sparsius inciso- 
serratis, sepalis oblonga-ellipticis obtusiusculis, saepe apiculatis, 2.5-3 
em. longis. Flores solitorii, pedunculo 8-12 em. longo recto. 
Western Szech’uan: north-east of Tachien-lu, Ta-p'ao-shan, 
thickets, alt. 2600-3300 m., July 1908 (No. 2487, type; climber 3-6 m., 
flowers yellow); vicinity of Tachien-lu, A. E. Pratt (No. 237). 
Western Kansu: Choni and Tao-chow, alt. 3000 m., 1911, W. 
Purdom. 
In its smaller and more sparingly serrate leaflets and in the shorter, obtusish 
or acutish sepals this variety differs chiefly from the type which has the sepals 
long-acuminate and up to 3.5 em. in length. The plant figured in Rev. Hort. 
agrees in the obtuse sepals with this variety, but they are described as 3-4 cm. 
long; specimens of cultivated plants before us have the sepals long-acuminate, as 
described by Maximowicz. A picture of this plant will be found under No. 0290 
of Wilson’s collection of photographs. 
